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True. There is a external and internal sphincter
If the Urine is in the bladder and does not flow, you put a catheter through the urethra.
A urine flow test evaluates the speed of urination, or amount voided per second, and the total time of urination.
flaw flew flow
The medical term "urinary" pertains to the motion and flow of urine.
A urine flow test can indicate problems in bladder function, such as an obstruction, that will need further tests to diagnose.
It is never normal for a kidney stone to block your urine, however it does happen. When a stone blocks the flow of urine, treatment needs to occur soon so kidney or ureter damage doesn't occur.
flaw flew flow
No.
AlkaptonuriaVesicoureteral reflux is the backflow of urine into the kidneys.
The Blader contracting and the Prostate relaxing to allow urine to flow
Urine does not flow back to the kidney because of the one-way flow of urine through the urinary system, controlled by valves that prevent backflow. The ureters have muscular walls that contract and relax to push urine towards the bladder, preventing reverse flow. Additionally, the angle at which the ureters enter the bladder also helps to prevent urine from flowing back towards the kidneys.